Question about Garmin Nuvi 660 GPS Receiver

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New GARMIN 660 Won't get past the Intro screen

I just opened my Garmin 660. It wouldn't turn on out of the box. I plugged it into the AC charger. Been about 4 hours now and the unit will not go past a screen with GARMIN in large letters in the center of the screen, black background. At the bottom of the screen it says Loading Maps....
I've unplugged it, powered it on, off.. Any suggestions?

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Re: New GARMIN 660 Won't get past the Intro screen

Problem solved: I got through to Tech Support. They suggested a 'hard reset', which solved the problem: Put you finger on the lower right screen while you power up and it will do a hard reset---and it will get past the "loading maps" screen, where it had been stuck.

Posted on Jan 03, 2008

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All of a sudden, when I plug in my garmin nuvi 660 and it boots up, I have the following problem.When I try to enter my state(Texas), after entering the letter T the screen flashes and I get an error...

Make sure your City Navigator map is enabled. To check your map, press the wrench/tools button, then the map icon and then press "map info".

You should see your map listed with a box next to it. This boxed should be checked. If it's not, then your map is turned off. Press the box and to place a checkmark in the box. This will turn your map back on.

- Jim

Aug 23, 2011 | Garmin Nuvi 660 GPS Receiver

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I've been using after market chargers in car and on ac. They worked fine for a long time. Now, my Garmin NUVI 660 seems to turn off (goes into "charge mode" or something) when I plug my car charger into...

Yes, many aftermarket chargers are not wired the same as a Garmin charger and will cause your Nuvi to think it's connected to a PC. What happened to the original charger that plugged into the cradle (the part your Nuvi snaps into?)

Please see this link:

- Jim

Jul 15, 2010 | Garmin Nuvi 660 GPS Receiver

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Either buy a new one or return to Garmin for repair.
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Nov 25, 2009 | Garmin Nuvi 660 GPS Receiver

1 Answer

I keep blowing fuses in the car charger for my Garmin Nuvi 660

What happens when you replace the fuse, plug in the charger without plugging the charger into the 660? Does it blow then? If not, the 660 is damaged internally and causing the fuse to blow. If it still blows, then there is a problem in the charger.

- Jim

Nov 17, 2009 | Garmin Nuvi 660 GPS Receiver

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How do I turn off our garmin nuvi?


Reset button behind the Antenna, press this in for a few seconds.
Use the Web-updater at Garmin, to update it too,
Jack it to a PC and run the update,
If still playing up, Use the Firmware update at Garmin for it,
(( google Garmin 660 software updates ))
Should be good then

May 18, 2009 | Garmin Nuvi 660 GPS Receiver

1 Answer

Garmin Nuvi 660 shutting off

It sounds like your battery is defective. They can be replaced. The Motorola phone cable is not wired exactly like the Garmin, and your Nuvi thinks it's connected to a PC. Radio Shack carries a charger for the Nuvi. I have one myself.

Let me know if you need additional help with your battery problem.

- Jim

Nov 15, 2008 | Garmin Nuvi 660 GPS Receiver

1 Answer

When I plug my Garmin Nuvi 660 in to recharge the battery, I can't use it while it's being charged. Is that normal. (Seems kinda dumb.)

Which charger are you using? The USB? AC charger? Car charger? It should work fine when using the AC or car charger. Using the USB places it in USB mode for programming.

Sep 16, 2008 | Garmin GPS Devices

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New Garmin Nuvi 660 gps

Page 2 of your manual shows you that the plug goes into the bottom of the GPS unit. Turn it over and you'll see a slot for the plug.

Apr 21, 2008 | Garmin Nuvi 660 GPS Receiver

5 Answers

Garmin nuvi won't turn on

folks, the garmins have an on-board battery that needs to be powered up (at least occasionally) via the usb port - like from your computer. just using the dc car power cord does nothing for this battery. i've had this exact same problem on both my 760 and 780 nuvi units. fixed it using the usb charge. seems to run down differently for all the various nuvi models. my regular charge will hold for 7 hours on my old 660, my 760 and 780 work about 5 hours. my 'power up' failed on the 660 after 10 months with no internal battery charge, but the 7xx models only took about 5-6 months to 'fail.' hope this helps. jack b :-) in midland, tx usa

Jan 13, 2008 | Garmin Nuvi 660 GPS Receiver

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